WO2013012046A1 - Led照明装置及びそれを用いた鉄道車両 - Google Patents
Led照明装置及びそれを用いた鉄道車両 Download PDFInfo
- Publication number
- WO2013012046A1 WO2013012046A1 PCT/JP2012/068378 JP2012068378W WO2013012046A1 WO 2013012046 A1 WO2013012046 A1 WO 2013012046A1 JP 2012068378 W JP2012068378 W JP 2012068378W WO 2013012046 A1 WO2013012046 A1 WO 2013012046A1
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- WIPO (PCT)
- Prior art keywords
- lighting device
- led lighting
- led
- light
- frame
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D29/00—Lighting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/40—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors specially adapted for specific vehicle types
- B60Q3/41—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors specially adapted for specific vehicle types for mass transit vehicles, e.g. buses
- B60Q3/43—General lighting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/40—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors specially adapted for specific vehicle types
- B60Q3/41—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors specially adapted for specific vehicle types for mass transit vehicles, e.g. buses
- B60Q3/47—Circuits; Control arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Definitions
- the present invention relates to an LED illumination device that performs illumination with an LED light-emitting element, and a railway vehicle using the LED illumination device. About.
- Patent Document 1 describes a configuration in which light emitted from a fluorescent tube is irradiated to the side by providing a translucent opening on a side surface of a lighting device (see FIG. 1). .
- LEDs light emitting diodes
- Patent Document 2 a plurality of lighting fixtures each having an LED element mounted on a substrate are prepared, and these are placed in a translucent tube in different directions, thereby obtaining lateral irradiation light. A lighting device is described (see FIG. 15).
- Patent Document 3 two substrates each having a plurality of LED elements are prepared, and these are arranged opposite to each other inside a straight tube so that irradiation light can be obtained from almost the entire circumference of the tube. A lighting device is described (see FIGS. 2 and 3). Further, Patent Document 3 also describes a configuration in which a reflecting surface is provided inside the tube, and light emitted from the LED element is reflected by the reflecting surface, thereby obtaining side irradiation light. (See FIGS. 4 to 7).
- Patent Document 4 includes a lighting device having a shelf structure that includes a light emitting element array and can be attached to a lower surface or a lower portion of a shelf board, and a frame that can be attached to the lower surface or the lower portion of the shelf board.
- a light-emitting element array that can be mounted; and a light-transmitting portion formed in at least one of a front area, an upper area, and a lower area of the frame, and the light-transmitting section is configured to emit light from the light-emitting element array.
- a plurality of lighting devices are used as cabin main lighting devices. It is provided on the ceiling continuously in the longitudinal direction.
- the illumination of the light from the illuminating device often requires lateral light distribution in addition to light emission as the main light emitting surface.
- Patent Document 1 it is difficult to apply the apparatus described in Patent Document 1 on the premise of a fluorescent lamp to a main lighting apparatus for a guest room using an LED illumination lamp as it is.
- the LED illumination lamp described in Patent Document 2 needs to prepare a plurality of LED elements each mounted on a surface of a separate substrate, and assemble them into a translucent tube. Is complicated.
- the LED illumination lamp described in Patent Document 3 needs to prepare two substrates each mounted with a plurality of LED elements, and assemble them into the inside of the tube. Moreover, it is necessary to provide a new reflecting surface inside the tube, and similarly, the configuration of the entire apparatus becomes complicated.
- a lens may be disposed in front of the LED element to refract the emitted light from the LED element to the side.
- a lens is required for each LED element, so that the entire device is similarly complicated.
- the shelf-structure lighting device described in Patent Document 4 also has an alignment member (reflective member) for directing the light from the light emitting element array toward the side translucent portion in order to refract the emitted light to the side. It is necessary to install in the frame corresponding to the element, and the configuration in the frame becomes complicated.
- the present invention has been made in view of such a conventional situation, and an object of the present invention is to provide an LED lighting device in which light distribution to the main light emitting surface and the side can be realized with a simple mechanism. It is in.
- the present invention fixes a substrate on which a plurality of LED light emitting elements are mounted to a frame having a bottom surface to which the substrate is fixed and a side wall surface with respect to the bottom surface, and the bottom surface of the frame A configuration is adopted in which the opposite surface is formed as an open surface, and the light emitted from the LED light emitting element is irradiated to the outside through the open surface.
- a translucent plate that transmits part of the light emitted from the LED light emitting element and reflects or scatters part of the light is provided in the vicinity of the open surface.
- An opening is provided in the side wall surface of the frame, whereby the light reflected or scattered by the diffusion sheet can be distributed to the side of the lighting device.
- the above-described open surface is covered by attaching a decorative cover from the open surface side. The translucent plate is fixed to the decorative cover, and the transmitted light of the diffusion sheet is distributed below the illumination device through the translucent plate.
- a complicated mechanism as described in each of the above-mentioned prior art documents for example, a plurality of substrates on which LED light emitting elements are mounted are arranged in different directions in a translucent tube, or a plurality of substrates are arranged.
- the main light emitting surface of the illuminating device main body and the additional light emitting device main body without any additional mechanism such as disposing the two substrates mounted with the LED light emitting elements facing each other inside the tube or providing a new reflecting surface inside the tube.
- An LED lighting device capable of light distribution to the side can be realized.
- the structure of the whole apparatus is simplified, it is also possible to realize a very thin LED lighting apparatus.
- Example 1 It is a rear view of the LED lighting apparatus based on Example 1 of this invention. It is a right view of the LED lighting apparatus of Example 1. It is a front view of the LED lighting apparatus of Example 1.
- FIG. 1D As an application example of the present invention, it is a schematic diagram showing a one-car train vehicle equipped with an LED lighting device. It is a schematic longitudinal cross-sectional view of the rail vehicle of FIG. 1D. It is the figure which showed the II-II line cross section of the LED lighting apparatus shown to FIG. 1B in the state from which the flame
- FIG. 1B It is detail drawing of the partial cross section of the longitudinal direction edge part (V part) of the LED lighting apparatus shown to FIG. 1B. It is a front view of the board
- FIG. 4 is a schematic diagram for explaining an optical path of light emitted from the LED light emitting element of Example 1. It is a schematic diagram for demonstrating the effect of the side edge part of a decorative cover. It is detail drawing of the partial cross section regarding the modification of the longitudinal direction edge part of an LED lighting apparatus.
- FIG. 2 It is a schematic diagram for demonstrating the structure and effect of the extension part of the decorative cover of the LED lighting apparatus based on Example 2 of this invention. It is a schematic diagram for demonstrating the structure and effect of the extension part of the decorative cover of an LED lighting apparatus based on the modification of Example 2 of this invention. It is sectional drawing of the LED lighting apparatus based on Example 3 of this invention. It is sectional drawing of the LED lighting apparatus based on Example 4 of this invention. It is sectional drawing of the LED lighting apparatus which concerns on the modification of Example 4.
- FIG. It is a figure which shows an example of the attachment aspect of the power supply unit integrated type LED lighting apparatus based on Example 5 of this invention.
- FIG. 5 It is a figure which shows the other example of the attachment aspect of the LED illuminating device integrated with the power supply unit based on the modification of Example 5.
- FIG. It is a figure which shows the other example of the attachment aspect of the LED illuminating device integrated with the power supply unit based on the modification of Example 5.
- FIG. It is a figure which shows the other example of the attachment aspect of the LED illuminating device integrated with the power supply unit based on the modification of Example 5.
- FIG. 5 shows the other example of the attachment aspect of the LED illuminating device integrated with the power supply unit based on the modification of Example 5.
- FIG. 1A is a rear view of the LED lighting device 1 of the present embodiment as viewed from above (back surface 2A side)
- FIG. 1B is a right side view thereof
- FIG. 1C is an external view of the LED lighting device 1 viewed from the main light emitting surface side.
- the LED lighting device 1 shown in FIGS. 1A to 1C includes a lighting device body 2 extending in the longitudinal direction (left-right direction in FIG. 1), and an LED power supply unit 3 installed on the back surface thereof.
- 2A is a heat sink
- 23C is a hanging portion
- 23h is a second opening window portion
- 5 is a first translucent plate
- 6 is a decorative cover
- 6a corresponds to an opening portion. Will be described later.
- the LED lighting device 1 of the present embodiment can be installed in various devices and facilities such as transportation equipment such as railway vehicles and buildings.
- the LED power unit 3 is connected to a power supply terminal block on the vehicle body side of the railway vehicle via a power line 31.
- a power line 31 In this case, either an AC power source or a DC power source can be used as the power source.
- FIG. 1D is a schematic diagram of a one-car train provided with a plurality (here, five) of LED lighting devices 1 as an example of an application target of the LED lighting device of the present invention.
- FIG. 1E is a schematic longitudinal cross-sectional view of the railway vehicle of FIG. 1D.
- the railroad vehicle 80 includes a current collector 82 that collects power from the overhead line 81 on the roof, and the high-voltage power collected by the current collector 82 is provided below the floor of the railcar 80. The power is transmitted to the power supply device 83.
- a storage battery or rectifier 84 and a first power supply device 85 are also mounted under the floor of the railway vehicle 80.
- the second power supply device 83 converts high-voltage power into low-voltage power that can be supplied to service equipment such as lighting and an air conditioner, and supplies power to the first power supply device 85 via the rectifier 84.
- the first power supply device 85 supplies the power to the service device such as the LED lighting device 1 mounted on the ceiling of the passenger room of the railway vehicle 80 via the power supply line 31.
- the storage battery is disposed on the power supply line 31 that connects the first power supply device 85 and the service device.
- the storage battery is disposed on the connection between the first power supply device 85 and the second power supply device 83. It doesn't matter.
- the second power supply device, the storage battery, the rectifier device, and the first power supply device with a control function are collectively referred to as a main power supply device.
- a pair of LED lighting devices 1 (1A, 1B) as the main lighting device with two rows on the ceiling mounting portion 88 in the passenger cabin 90 of the railway vehicle 80, that is, with the air conditioning device 89 interposed therebetween. is set up.
- Reference numeral 91 denotes a window
- 92 denotes a seat.
- the pair of LED lighting devices 1 (1A, 1B) function as an indirect lighting device that irradiates the seat 92 in the cabin 90 and softly illuminates the vicinity of the ceiling above the left and right windows 91 of the cabin.
- a plurality of LED lighting devices 1 are sequentially connected in a row in a longitudinal direction, and are installed in the ceiling mounting portion 88 in the cabin 90 with the opening facing downward according to the mounting mode described in detail later. Has been.
- the plurality of LED lighting devices 1 are connected to the main power supply device, for example, in series or in parallel.
- an illuminance sensor 86 that monitors the illuminance in the passenger compartment of the railway vehicle 80 and a composition control device 87 are connected to the main power supply device as devices constituting the LED lighting system.
- the knitting control device 87 processes route information such as a tunnel position and a dimming command for controlling the brightness of the LED lighting device 1 provided in the railway vehicle 80.
- the illuminance sensor 86 detects a change in the illuminance in the guest room due to a change in the outside environment of the railway vehicle 80, for example, a change in travel time zone, travel position, weather, and the like, and sends it to the first power supply device 85 as illuminance information. . Based on the route information and illuminance information, the first power supply device 85 controls the current or power supplied to the LED lighting device 1 via the power line 31 so that the illuminance in the cabin falls within a predetermined range. With such an LED lighting system, the illuminance in the passenger compartment of the railway vehicle 80 is maintained at a desired level.
- Example 3 there may be a form in which the LED power supply unit 3 and the illumination device body 2 are separated.
- FIG. 2 shows a cross-sectional view taken along the line II-II in FIG. 1B of the LED lighting device 1 of the present embodiment.
- the illuminating device body 2 of the LED illuminating device 1 of the present embodiment roughly includes a generally rectangular parallelepiped frame 20 whose one surface forms an open surface, and a decorative cover 6 that covers the frame 20 from the open surface side. It is configured to include.
- FIG. 2A shows a cross-sectional view taken along the line II-II in a state where the decorative cover 6 is separated from the frame 20, but actually, as shown in FIG. 2B, the decorative cover 6 And the frame 20 are used in combination.
- the frame 20 includes a base portion 21 and side edge portions 22 and 23 provided at both left and right end portions of the base portion 21.
- the vertical cross section of the frame 20 has a square shape, and extends in the longitudinal direction of the illuminating device body 2 (the left and right directions in the rear view, the side view, and the front view shown in FIGS. 1A to 1C).
- the frame 20 having such a shape can be formed, for example, by extrusion of an aluminum alloy.
- the end plate 25 is attached to the longitudinal direction end of the LED lighting device 1 of the frame 20 as shown in FIG. 3, and forms the wall surface of the box-shaped longitudinal end of the frame 20 described above.
- the side of the base portion 21 facing the open surface forms the bottom surface of the frame 20, and the substrate 4 on which the plurality of LED light emitting elements 10 are mounted is attached to the bottom surface, that is, the mounting surface.
- substrate 4 consists of a rectangular flat plate, and the attachment surface is also a flat surface.
- a heat sink 2A (convex portion) is formed on the power supply unit facing surface of the base portion 21 (the back surface of the mounting surface of the substrate 4) via a pair of concave portions formed in the frame longitudinal direction.
- the heat sink 2A has a function of releasing heat generated by energizing the LED light emitting element 10 to the outside.
- a simple convex portion is used as the heat sink 2A in this embodiment.
- a metal thin film or a heat-dissipating coating having good thermal conductivity is provided on the back surface of the base portion 21 without providing the convex portion. It may be provided to function as the heat sink 2A. Or you may provide a metal thin film and a heat dissipation coating in the surface of a convex part.
- the side edge portion 22 is arranged with an upper projecting portion 22A projecting from the left side portion of the base portion 21 to the left (left side in FIG. 2), and below (lower in the figure) with a gap therebetween.
- a lower projecting portion 22B projecting leftward.
- the upper overhanging portion 22A and the lower overhanging portion 22B are connected in the vertical direction (that is, the thickness direction of the lighting device main body 2) by the hanging portion 22C.
- the lower projecting portion 22B is provided with an inner projecting portion 22D that projects to the side edge portion 23 side.
- the side edge portion 23 is disposed with an upper projecting portion 23A projecting rightward (rightward in FIG. 2) from the right side portion of the base portion 21 and a space below the upper projecting portion 23A.
- the upper projecting portion 23A and the lower projecting portion 23B are connected in the vertical direction by a hanging portion 23C.
- the lower overhang 23B is also provided with an inner overhang 23D that protrudes toward the side edge 22.
- the above-described inner projecting portions 22D and 23D extend in the longitudinal direction of the frame 20, and in this embodiment, the opening formed by the inner projecting portions 22D and 23D is referred to as an open surface. Further, on the outer side of this open surface (the lower side in FIG. 2A), concave portions 22b and 23b are formed by the lower surfaces of the inner overhang portions 22D and 23D and the inner wall surfaces of the lower overhang portions 22B and 23B, respectively. Yes.
- the above-described hanging portions 22C and 23C each form a side wall surface of the frame 20.
- second side opening windows 23h are intermittently formed through the side wall surfaces (22C, 23C) along the longitudinal direction of the illuminating device main body.
- the second opening window 23h is a long hole extending in the longitudinal direction of the lighting device body 2, and a plurality of second opening windows 23h are provided at predetermined intervals in the longitudinal direction.
- the second translucent plate 7 is fixed to the second opening window 23h by a screw as a fastening member.
- a second translucent plate 7 is fixed to each second opening window 23h.
- a flame-retardant or fire-resistant resin plate for example, a polycarbonate plate
- the second translucent plate is not always necessary in principle, but has a dust-proofing effect inside the frame 20 in order to perform the function of closing the second opening window 23h, and is applied to the surface of the LED light emitting element 10. Illumination deterioration due to dust adhesion can be suppressed.
- the lower overhang portions 22B and 23B in the side edge portions 22 and 23 described above are opposed to each other with an interval in the width direction of the LED lighting device 1 (left and right direction in FIG. 2).
- a first opening window portion 20h facing the 20 base portions 21 is formed.
- the first opening window 20h is formed so that the first light-transmissive plate 5 is positioned when the decorative cover 6 is attached to the frame 20 (see FIG. 2B).
- the decorative cover 6 is a member that covers the frame 20 from below. As shown in FIG. 1C, the decorative cover 6 is a plate-like member that includes an opening 6a and is bent at the end. The opening 6a extends in the longitudinal direction (the direction perpendicular to the plane of FIG. 2A or 2B).
- FIG. 3 which is a V partial detail view of FIG. 1B
- the longitudinal end portion of the decorative cover 6 is bent upward while being bent toward the back surface 2 ⁇ / b> A side of the lighting device body 2.
- a portion 63 is formed.
- the bent portion 63 covers the end portion of the lighting device main body 2 from the end surface direction.
- extending portions 61 and 62 described later are formed at the end of the decorative cover 6 in the width direction.
- the decorative cover 6 is provided with screw holes 29, and the lower surfaces of the lower overhang portions 22B and 23B and the inner overhang portions 22D and 23D of the frame 20. Further, it is detachably fixed to the frame 20 by a fastening member 28 (for example, a screw, a bolt and a nut) through a buffer member such as the packing 24.
- a fastening member 28 for example, a screw, a bolt and a nut
- the LED lighting device 1 of the present embodiment has a very simple thickness because of its simple structure, and furthermore, the open surface and the first opening window portion 20h and the substrate 4 are in a parallel or roughly parallel positional relationship (that is, Since the substrate 4 is fixed to the bottom surface of the box-shaped frame 20), the substrate 4 can be immediately accessed by removing the decorative cover 6. Therefore, by making the decorative cover 6 detachable without completely fixing the decorative cover 6 to the frame 20, the accessibility to the substrate 4 is remarkably improved, and the substrate 4 when the LED light-emitting element 10 is damaged or failed. The maintainability of the apparatus, such as replacement work, is improved. Of course, even if the decorative cover 6 is completely fixed to the frame 20, the light distribution from the side of the lighting device is possible, but from the viewpoint of maintainability, the decorative cover 6 is detachable from the frame 20. Is preferable.
- a first translucent plate 5 is provided on the back surface of the opening 6a (on the side facing the frame 20).
- a portion around the opening 6 a is referred to as an opening edge 60, but the first translucent plate 5 is formed on the opening edge 60 by the packing 24. It is fixed on the back side.
- the 1st translucent plate 5 is fixed to the decorative cover 6 side, 6 is preferably removable from the frame 20 integrally.
- the packing 24 is accommodated in the recesses 22b and 23b. That is, the outer peripheral edge of the first translucent plate 5 is sandwiched between the inner overhanging portions 22D and 23D and the opening edge 60 via the packing 24, and the opening edge 60 is It functions as a holding portion for holding the outer peripheral edge portion of the translucent plate 5. Similar to the opening 6a, the first translucent plate 5 extends in the longitudinal direction (perpendicular to the plane of FIG. 2).
- the first translucent plate 5 is a member having a function of guiding the light emitted from the LED light emitting element 10 to the lower side of the lighting device body 2 and reflecting or scattering the light to the side, and preferably has a flat plate shape.
- a glass plate for example, a tempered glass plate
- the decorative cover 6 is fixed to the box-shaped frame so as to close the open surface, so that the first light-transmitting plate 5 forms a flat light emitting surface.
- a lighting device having a light-emitting surface such as a fluorescent lamp
- a lighting device having a flat light-emitting surface is less likely to catch long baggage.
- the light emitting surface is configured to be flat, so that the probability of breakage of the lighting device can be reduced as compared with the case where the light emitting surface is uneven.
- the first translucent plate 5 On the inner surface (upper side surface in FIG. 2) of the first translucent plate 5, there is a diffusion sheet (not shown) that transmits part of the light emitted from the LED light emitting element 10 and reflects or scatters part of the light.
- the diffusion sheet is provided, and the emitted light from the LED light emitting element 10 can be diffused and irradiated to the side by this diffusion sheet. Further, since the diffusion sheet is provided, the first translucent plate 5 can be prevented from scattering when the first translucent plate 5 is damaged.
- a polarizing sheet may be adopted.
- the light emitted from the LED light emitting element 10 enters the first light transmissive plate 5 and diffuses by attaching the first light transmissive plate 5 by changing the vertical and horizontal directions of the diffusion sheet.
- the appearance of the light emission surface of the 1st translucent plate 5 changes.
- the first translucent plate 5 emits light linearly in the longitudinal direction and the light emitting surface looks like a cold cathode tube, or the first translucent plate 5 extends in the width direction orthogonal to the longitudinal direction. Light emission in a striped pattern makes the light emitting surface appear three-dimensional.
- the diffusion sheet is used to realize the reflection / scattering function of the first translucent plate 5.
- the first sheet can be used without using the diffusion sheet.
- the translucent plate 5 can be produced.
- the combination of the glass plate and the diffusion sheet has less light loss, and an illumination device with higher illuminance can be realized.
- first translucent plate 5 and the second translucent plate 7 may be formed of a colored translucent member.
- the light transmitted through the first translucent plate 5 and the second translucent plate 7 is colored, but the colored first translucent plate or the first translucent plate.
- the decorative cover 6 of the present embodiment is provided with extending portions 61 and 62 extending from the opening edge portion 60 to both sides.
- the shapes of the extending portions 61 and 62 are different. The shape is asymmetrical.
- the extending portion 61 rises upward while bending toward the back surface 2A side of the lighting device main body 2 and forms a standing wall portion extending to the upper overhanging portion 22A of the side edge portion 22 of the frame 20. 20 side edges 22 are covered from the side. This is because light emission from the side where the extending portion 61 is provided is unnecessary.
- the extending portion 62 forms an inclined portion that is inclined while curving upward toward the back surface 2 ⁇ / b> A side of the lighting device main body 2. The function / action of the extended portion 62 will be described later.
- FIG. 4 is a schematic diagram showing a state in which the LED light emitting element 10 is mounted on the substrate 4.
- a large number of LED light emitting elements 10 arranged along the longitudinal direction of the substrate 4 are mounted.
- the substrate 4 is fixed on the base portion 21 via an insulating sheet (not shown).
- the substrate 4 attached to the illumination device main body 2 which is one of the constituent elements of one LED illumination device 1 is a plurality of, for example, four substrates 4A as shown in FIG. 4B, 4C, and 4D (a large number of LED light emitting elements 10 are mounted on the mounting surfaces of the substrates 4A to 4D, respectively, but are not shown).
- the substrate 4 on which the LED light emitting element is mounted is divided into a plurality of substrates and mounted on the lighting device main body 2, so that the LED light emitting element is damaged or failed. The device maintenance is easy.
- the LED light emitting elements are Since it is divided into a plurality of substrates and mounted on the apparatus, there is no need to replace the entire LED light emitting element.
- FIG. 5 schematically shows the electrical connection relationship between a plurality of substrates using a pair of connectors (male connector and female connector).
- a male connector 40 is provided at a corner of each of the boards 4A to 4D, and adjacent boards are electrically connected by a relay female connector 41 fitted to each of the opposing male connectors 40.
- the remaining male connectors 40 of the boards 4A and 4D are fitted with short-circuit female connectors 41 '.
- the female connector 41 ′′ fitted to the remaining male connector 40 of the substrate 4B is connected to the LED power supply unit 3 via the terminal block 30.
- the substrates 4A and 4B, the substrate 4C, 4D is connected in series to the power supply unit 3.
- One substrate 4 configured by connecting a plurality of substrates using such a pair of connectors is connected to the illumination device body 2 of each LED illumination device 1. Has been implemented.
- FIGS. 6 is a cross-sectional view taken along the line VI-VI of FIG. 1B
- FIG. 7 is a schematic diagram showing an optical path of light emitted from the LED light emitting element 10. As shown in FIG.
- the light emitted from the LED light emitting element 10 enters the first translucent plate 5 facing the base portion 21. Since the first opening window 20h (in other words, the first translucent plate 5) and the substrate 4 are in a parallel or roughly parallel positional relationship, the second of the light emitted from each LED light emitting element 10 is the second. Except for the light that directly reaches the opening window 23h, the light is incident on the first light-transmitting plate 5 directly below, is transmitted downward, and is then directly irradiated to the outside of the illumination device main body 2 as light. An example of the optical path of direct light is shown by a solid line in FIGS.
- the second light transmissive plate 7 of the hanging portion 23 ⁇ / b> C is applied.
- the light passes through and is irradiated as indirect light to the side of the second opening window 23h.
- the optical path of the indirect light is indicated by a one-dot chain line in FIGS.
- the side illumination of the illumination device can be realized with a simple configuration.
- FIG. 8 is a schematic diagram showing an optical path of light emitted from the LED light emitting element 10, where a solid line indicates an optical path of direct light, an alternate long and short dash line indicates an optical path of indirect light, and an alternate long and two short dashes line indicates an optical path of another indirect light. .
- the dotted line indicates the center of the second translucent plate 7. For example, part of the light emitted from the LED light emitting element 10 passes through the first light-transmissive plate 5 through the optical path indicated by the solid line in FIG. 8 and irradiates the lower surface of the illumination device.
- the outer side of the decorative cover 6 has an extending portion 62 constituted by a curved portion warped upward.
- a part of the light emitted from the LED light emitting element 10 is directly reflected by the inner surface of the extending portion 62 after being directly transmitted through the second light transmissive plate 7.
- the upper part (the upper side of the drawing with respect to the dotted line in FIG. 8) is irradiated.
- a part of the emitted light from the LED light emitting element 10 is reflected by the diffusion sheet on the back surface of the first translucent plate 5, and then the upper projecting portion.
- the light is reflected by the inner surface of 23A, and illuminates the lower side portion of the lighting device (lower side of the paper than the dotted line in FIG. 8).
- the extending portion 62 curved upward is provided in the end region in the width direction of the decorative cover 6, and the upper projecting portion 23 ⁇ / b> A is provided on the frame 20, whereby the side of the lighting device is lowered from the upper side. Irradiate evenly to the side.
- This effect is particularly great when the LED lighting device 1 of the present embodiment is attached to a railway vehicle, and it becomes possible to irradiate the ceiling side surface and side advertisements of the vehicle brighter than the conventional lighting device.
- the left LED lighting device 1A has an extending portion 62 on the left side
- the right LED lighting device 1B has an extending portion 62 on the right side.
- the light from the extension part 62 has an effect which irradiates the ceiling side surface, side advertisement, etc. of a vehicle brightly.
- the inner surface of the extending portion 62 is painted white in order to increase the amount of reflected light.
- the structure of the entire device can be simplified.
- a third opening window 25 a is formed through the end plate 25 attached to the end of the longitudinal direction, and the third translucent plate 8 is attached to the opening window 25 a.
- the emitted light may be transmitted through the third translucent plate 8 and irradiated from the third opening window portion 25a toward the end portion.
- an LED illumination device that simplifies the structure of the entire device, emits light as a main light emitting surface, and can distribute light to the side of the illumination device main body without any additional complicated mechanism. Can be realized. Moreover, since the structure of the whole apparatus is simplified, it is also possible to realize a very thin LED lighting apparatus.
- the extending portion 62 of the decorative cover 6 has been described.
- the curved extending portion 62 is linearly bent with respect to the opening edge portion 60 of the decorative cover 6. It may intersect. Also in this case, the same optical path as in FIG. 8 is formed.
- the extending portion 62 of the decorative cover 6 may be simply extended on the extension line of the opening edge portion 60 without having a curved shape or a bent shape. good. Also in this case, it is possible to irradiate the emitted light from the LED light emitting element 10 to the side.
- the structure of the extending portion for performing light distribution to the side is simplified, and a very thin LED lighting apparatus can be realized.
- FIG. 12 shows a cross-sectional view of the LED lighting device 1 of the present embodiment corresponding to the cross-sectional view taken along the line VI-VI in FIG. 1B.
- the external view of the LED lighting device 1 of the present embodiment the side view is almost the same as FIG. 1B, but the LED power supply unit is separated, and because it is a double-sided light emitting type, the rear view and the front view are It is slightly different from the embodiment shown in FIGS. 1A to 1C.
- the second opening window portion 23h is formed so as to penetrate both the hanging portions 22C and 23C of the side edge portions 22 and 23 of the frame 20, and the second translucent plate 7 is provided in the opening window portion.
- both the extending portions 61 and 62 of the decorative cover 6 are formed as inclined portions that are inclined while being curved toward the back surface 2A side of the lighting device body 2.
- upper projecting portions 22A and 23A are provided on both side edge portions 22 and 23, respectively. Thereby, it becomes possible to irradiate the side of the both sides of an illuminating device uniformly from the upper side to the lower side.
- the LED lighting device 1 since the shapes of the extending portions 61 and 62 are symmetrical, for example, an air conditioner for the passenger cabin 90 of the railway vehicle 80 is installed under the floor of the railway vehicle 80, and the interior of the passenger cabin 90 is connected via a duct. Suitable for air-conditioned types. That is, the LED lighting device 1 of the present embodiment can also be attached to the center of the ceiling in the cabin 90. In other words, the LED lighting device 1 of the present embodiment has no restriction on the installation position such as the ceiling surface.
- the LED power supply unit 3 is separated from the illuminating device main body 2, so that the illuminating device main body 2 can be reduced in weight, and the burden of attaching the illuminating device main body 2 to the ceiling surface can be reduced. Further, since the LED power supply unit 3 can be disposed outside the lighting device body 2, for example, under the floor of a railway vehicle, an effect of lowering the center of gravity of the vehicle can be expected. In addition, it cannot be overemphasized that the structure which isolate
- the LED lighting device described in the first to third embodiments has a feature that the side lighting can be brighter than the conventional LED lighting device, the side lighting is not so important in some cases, and is emitted from the LED light emitting element. In some cases, it is desired to distribute the emitted light to the lower side of the lighting device.
- FIG. 13A shows a cross-sectional view of the LED lighting device 1 of the present embodiment.
- the LED light emitting element 10 is mounted on the substrate 4, and the substrate 4 is screwed to the bottom surface of the frame 20.
- the first translucent plate 5 is fixed to the back surface of the opening 6a of the decorative cover 6, and the decorative cover 6 is fixed to the frame 20 via a packing 24 (buffer member) and a fastening member (not shown).
- the second opening window 23h is formed on the side wall of the frame 20, in the case of this embodiment, the second translucent plate 7 is formed on the outer side wall surface of the frame 20 and the inner side wall surface of the decorative cover 6. Both are fixed.
- the diffuser 70 shade member
- the diffuser 70 is fixed to the frame 20 and the LED power supply unit 3 via the attachment portion 71.
- the light emitted from the LED light emitting element 10 passes through the optical path indicated by the solid line in FIG. 13A, for example, passes through the first translucent plate 5 and irradiates the lower surface of the illumination device. To do.
- the light passes through the second translucent plate 7, but is reflected by the inner wall surface (the downward surface of the paper surface) of the diffuser 70 and Led.
- the light path is direct light passing through the second opening window 23h, as shown by the two-dot chain line in FIG. 13A, the light is reflected by the inner wall surface (downward surface of the paper) of the diffuser 70, and the LED illumination device 1 is led to the lower part.
- the LED lighting device 1 has a symmetrical shape of the extending portion, for example, when it is attached to the ceiling attaching portion in the passenger cabin 90 of the railway vehicle 80, it can be attached to the center of the ceiling. There is no restriction on the position.
- FIG. 13B shows a modification of the fourth embodiment.
- the second opening window 23h since the lower end of the second opening window 23h is located below the lower end of the diffuser 70, a part of the light passing through the second opening window 23h is the diffuser 70. Without being reflected, the light passes through the second opening window 23h as direct light and is irradiated to the side of the LED lighting device 1. Therefore, according to the embodiment of FIG. 13B, it is possible to realize a suitable LED illumination device when it is desired to illuminate the lower part of the LED illumination device 1 mainly, but also to distribute the light to the side to some extent. It is obvious that the degree of light distribution to the side can be adjusted by adjusting the length d shown in FIG. 13B (the difference between the lower end position of the second opening window 23h and the lower end position of the diffuser 70). is there.
- each aspect of the method of mounting the LED lighting device with the power supply unit will be described with reference to FIGS.
- the attachment method in the case of attaching the LED lighting apparatus of this invention to a rail vehicle is demonstrated.
- the LED lighting device 1 described in the first to fourth embodiments is attached to the attachment surface using the overhang portions 22A, 23A or 22B, 23B of the side edge portions 22, 23 of the frame 20.
- the same reference numerals as those shown in FIGS. 1 to 13 denote the same or corresponding parts.
- the LED illuminating device 1 is shown with the schematic, The board
- a through hole 16a is formed in the ceiling plate 16 of the railcar and the LED power supply unit 3 is arranged on the back side of the ceiling through the through hole 16a.
- the upper overhanging portions 22A and 23A in the side edge portions 22 and 23 of the frame 20 are attached to the top plate 16 by means of attachment screws 15 (fastening members) that pass them up and down.
- the LED power supply unit 3 is disposed in the recess 16b using the recess 16b formed in the ceiling.
- the lower end of the mounting bracket 17 having a substantially cross-sectional shape in cross section is attached to the upper projecting portions 22A and 23A of the frame 20 by the mounting screw 15.
- the mounting bracket 17 is disposed in the recess 16b, and is attached to the top plate 16A in the recess 16b by a mounting screw 18.
- FIG. 14 and 15 show an example in which the lighting device main body 2 is arranged below the top plate 16, but in the case shown in FIG. 16, the upper overhang portions 22A and 23A of the frame 20 are provided on the ceiling.
- the lower surfaces of the upper projecting portions 22A and 23A are attached to the upper surface of the top plate 16 by mounting screws 15. That is, in this case, a part of the lighting device body 2 is disposed above the top plate 16.
- the entire LED lighting device is arranged on the back side of the ceiling, and the LED lighting device 1 is embedded in the ceiling.
- the lower surfaces of the lower projecting portions 22B and 23B at the side edge portions 22 and 23 of the frame 20 are attached to the upper surface of the top plate 16 by the mounting screws 15 (fastening members).
- the second translucent plate is not necessary.
- the attachment mode shown in FIG. 17 since there is no unevenness on the ceiling surface, there is an effect that the ceiling surface looks clean in appearance.
- the LED lighting device 1 when the LED lighting device 1 is attached, by using the overhanging portions 22A, 22B and 23A, 23B spaced apart in the vertical direction at the left and right side edge portions 22, 23 of the frame 20, The LED illumination device 1 can be easily attached to the attachment surface, and various attachment methods are possible.
- the lighting device main body is mounted on the mounting surface via the protruding portion of the side edge.
- the overhanging portion is provided so as to protrude from the side portion of the base portion to the side, by using this overhanging portion, it is possible to easily attach the lighting device body to the attachment surface. It becomes like this.
- projection part is arrange
- the LED power supply unit 3 is installed on the back surface 2A of the illuminating device main body 2, when the illuminating device main body 2 is installed on an attachment surface (for example, a ceiling surface), the power supply unit 3 is attached to, for example, a terminal block on the attachment surface side.
- the work of connecting is facilitated, and the maintenance work of the power supply unit alone is facilitated.
- the mounting method in the case where the LED lighting device of the present invention is mounted on a railway vehicle has been described.
- the LED lighting device of the present invention is used for lighting in a building such as a building or indoor lighting for a house. It is also applicable to.
- the present invention is suitable for an LED illumination device that can realize lateral irradiation light with a simple mechanism.
- LED illumination device 2 Illumination device body 2A: Heat sink 20h: First opening window portion 21: Base portion 22: Side edge portion 22A, 22B: Overhang portion 22C: Hanging portion 23: Side edge portion 23A, 23B : Overhang portion 23C: Hanging portion 23h: Second opening window portion 25a: Third opening window portion 3: LED power supply unit 31: Power supply line 4: Substrate 4A to 4D: Substrate 5: First translucency Plate 6: Decorative cover 60: Opening edge 61, 62: Extension 7: Second translucent plate 10: LED light emitting element 80: Railcar 88: Ceiling mounting 90: Guest room.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
Abstract
Description
に関する。
一方、上述の開放面は、開放面側から化粧カバーを取り付けることによって覆われる。この化粧カバーには、上記透光性プレートが固定されており、拡散シートの透過光は、この透光性プレートを介して照明装置の下方に配光される。
また、装置全体の構造が簡素化されるため、非常に薄いLED照明装置を実現することも可能となる。
図1A、図1Bおよび図1Cには、本実施例のLED照明装置1の背面図、側面図および正面図をそれぞれ示す。図1Aは、本実施例のLED照明装置1を上方(背面2A側)からみた背面図、図1Bは、同右側面図、図1Cは、LED照明装置1を主発光面側から見た外観図を示す。図1A~図1Cに示すLED照明装置1は、長手方向(図1左右方向)に延設された照明装置本体2と、その背面に設置されたLED電源ユニット3とを備えている。2Aはヒートシンク、23Cは垂設部、23hは第2の開口窓部、5は第1の透光性プレート、6は化粧カバー、6aは開口部に各々対応するが、これらの構造・機能については後述する。
また、装置全体の構造が簡素化されるため、非常に薄いLED照明装置を実現することも可能となる。
あるいは、図11の変形例に示すように、化粧カバー6の延設部62は、湾曲形状や屈曲形状を有することなく、単に開口縁部60の延長線上に延設されたものであっても良い。この場合においても、LED発光素子10からの出射光を側方に照射させることが可能である。
本実施例によれば、側方への配光を行うための延設部の構造、ひいては装置全体の構造が簡素化され、非常に薄いLED照明装置を実現することが可能となる。
図12に、図1BのVI-VI線断面図に相当する、本実施例のLED照明装置1の断面図を示す。ここで、本実施例のLED照明装置1の外観図は、側面図は図1Bとほぼ同様であるが、LED電源ユニットが分離されており、更に両面発光タイプのため、背面図と正面図は図1Aないし図1Cに示される態様とは若干異なる。
本発明は、側方への照射光を簡単な機構で実現できるLED照明装置に好適である。
2: 照明装置本体
2A: ヒートシンク
20h: 第1の開口窓部
21: ベース部
22: 側縁部
22A、22B: 張出部
22C: 垂設部
23: 側縁部
23A、23B: 張出部
23C: 垂設部
23h: 第2の開口窓部
25a: 第3の開口窓部
3: LED電源ユニット
31: 電源線
4: 基板
4A~4D: 基板
5: 第1の透光性プレート
6: 化粧カバー
60: 開口縁部
61、62: 延設部
7: 第2の透光性プレート
10: LED発光素子
80: 鉄道車両
88: 天井の取付け部
90: 客室。
Claims (19)
- LED発光素子が搭載される基板と、
前記基板が固定される底面と、該底面から伸びた側壁面とを有し、当該底面の対向面が開放面をなすフレームと、
前記LED発光素子から放出された光が通過する第1の開口窓部を有し、前記フレームに対して前記開放面側から取り付けられる化粧カバーと、
前記第1の開口窓部を覆うように前記化粧カバーに固定され、前記LED発光素子から放出された光の一部を透過させ、一部を反射あるいは散乱させる第1の透光性プレートと、
前記側壁面の少なくとも一つに設けられ、前記第1の透光性プレートから反射された光を外部に通過させる第2の開口窓部とを備えることを特徴とするLED照明装置。 - 請求項1に記載のLED照明装置において、
前記化粧カバーが前記開放面を塞ぐように前記フレームに固定されることにより、前記第1の透光性プレートが平坦な発光面を構成することを特徴とするLED照明装置。 - 請求項1に記載のLED照明装置において、
前記第1の透光性プレートは、
ガラス板と、当該ガラス板を透過する光量を調節する拡散シートとを備えることを特徴とするLED照明装置。 - 請求項3に記載のLED照明装置において、
前記拡散シートに替えて、偏光シートを備えることを特徴とするLED照明装置。 - 請求項1に記載のLED照明装置において、
前記第2の開口窓部に設けられた第2の透光性プレートを備えることを特徴とするLED照明装置。 - 請求項5に記載のLED照明装置において、
前記第2の透光性プレートが色付き透光プレートであることを特徴とするLED照明装置。 - 請求項1に記載のLED照明装置において、
前記第2の開口窓部が、前記側壁面のうち前記フレームの長手方向に延びる2つの側壁面のいずれか一方に形成されていることを特徴とするLED照明装置。 - 請求項7に記載のLED照明装置において、
前記第2の開口窓部が、さらに前記2つの側壁面の両方に形成されていることを特徴とするLED照明装置。 - 請求項7に記載のLED照明装置において、
前記フレームの長手方向端部の側壁面に設けられた第3の開口窓部を備えることを特徴とするLED照明装置。 - 請求項1に記載のLED照明装置において、
前記化粧カバーの前記第2の開口窓部側端部が曲面であることを特徴とするLED照明装置。 - 請求項10に記載のLED照明装置において、
前記曲面の前記第2の開口窓部側の面が光を反射する色に塗装されていることを特徴とするLED照明装置。 - 請求項1に記載のLED照明装置において、
前記フレームの側壁面のうち当該フレームの長手方向に延びる2つの側壁面に、LED照明装置を所定の取付面に固定する締結部材が配置される張出部を備えることを特徴とするLED照明装置。 - 請求項1に記載のLED照明装置において、
前記フレームの底面側から前記開放面側に反った笠部材を備えたことを特徴とするLED照明装置。 - 請求項13に記載のLED照明装置において、
前記フレームの底面を上側、前記開放面側を下側として、前記第2の開口窓部の少なくとも下端が前記笠部材の下端よりも下側に配置されることを特徴とするLED照明装置。 - 請求項1に記載のLED照明装置において、
前記基板の取付面の裏面側に形成されたヒートシンクを備えることを特徴とするLED照明装置。 - 請求項15に記載のLED照明装置において、
前記ヒートシンクは、前記裏面側に設けられた2つの長手方向溝により形成される凸部であることを特徴とするLED照明装置。 - 鉄道車両の客室内に設置される複数のLED照明装置と、
前記LED照明装置に電力を供給する主電源装置とを備える鉄道車両であって、
前記各LED照明装置は、
LED発光素子が搭載される基板と、
前記基板が固定される底面と、該底面から伸びた側壁面とを有し、当該底面の対向面が開放面をなすフレームと、
前記LED発光素子から放出された光を通過する第1の開口窓部を有し、前記フレームに対して前記開放面側から取り付けられる化粧カバーと、
前記第1の開口窓部を覆うように前記化粧カバーに固定され、前記LED発光素子から放出された光の一部を透過させ、一部を反射または散乱する第1の透光性プレートと、
前記側壁面の少なくとも一つに設けられ、前記第1の透光性プレートから反射された光を外部に通過させる第2の開口窓部とを有することを特徴とする鉄道車両。 - 請求項17に記載の鉄道車両において、
前記LED照明装置は長手方向に複数個繋がれ、前記第1の開口窓部を下方に向けて、前記鉄道車両の客室の天井に設置されるものであって、
前記各LED照明装置は、
前記天井の表側に前記底面の前記基板の反対側の面が固定され、前記LED電源ユニットが前記天井の裏面側に固定されており、
前記化粧カバーが前記開放面を塞ぐように前記箱状のフレームに固定されることにより、前記第1の透光性プレートが平坦な発光面を構成することを特徴とする鉄道車両。 - 請求項18に記載の鉄道車両において、
前記第2の開口窓部に設けられた第2の透光性プレートを備え、
前記化粧カバーの幅方向の端部領域に上側に湾曲した延設部を設け、
前記LED発光素子からの出射光の一部を、前記第2の透光性プレートを直接透過した後、前記延設部の内面で反射され、側方上部を照射することを特徴とする鉄道車両。
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BR112014001308A BR112014001308A2 (pt) | 2011-07-21 | 2012-07-19 | dispositivo de iluminação por led e veículo de trilho que usa o mesmo |
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JP2011159794 | 2011-07-21 | ||
JP2011-159794 | 2011-07-21 | ||
JP2012159249A JP5865797B2 (ja) | 2011-07-21 | 2012-07-18 | Led照明装置 |
JP2012-159249 | 2012-07-18 |
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Cited By (3)
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EP2803551A1 (en) * | 2013-04-09 | 2014-11-19 | Bombardier Transportation GmbH | Led lighting system for a railway vehicle |
EP3575148A1 (fr) * | 2018-06-01 | 2019-12-04 | ALSTOM Transport Technologies | Profilé pour l'aménagement intérieur d'un véhicule ferroviaire |
US10568171B2 (en) | 2017-09-11 | 2020-02-18 | 2449049 Ontario Inc. | Universal AC and DC input modular interconnectable printed circuit board for power distribution management to light emitting diodes |
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JP6248368B2 (ja) * | 2013-07-05 | 2017-12-20 | 東芝ライテック株式会社 | 照明器具 |
JP6384719B2 (ja) * | 2014-07-30 | 2018-09-05 | パナソニックIpマネジメント株式会社 | 照明装置 |
JP6516502B2 (ja) * | 2015-02-18 | 2019-05-22 | コイト電工株式会社 | 照明装置 |
WO2017126574A1 (ja) * | 2016-01-21 | 2017-07-27 | パナソニックIpマネジメント株式会社 | 天井扇風機 |
JP6470732B2 (ja) * | 2016-12-26 | 2019-02-13 | 川崎重工業株式会社 | 鉄道車両の室内照明装置 |
JP2020115491A (ja) * | 2020-05-08 | 2020-07-30 | 株式会社ミサワアソシエイツ一級建築士事務所 | 間接照明具用支持台、間接照明具、及び間接照明具の取付け構造 |
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JP2010192388A (ja) * | 2009-02-20 | 2010-09-02 | Panasonic Electric Works Co Ltd | 照明器具 |
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- 2012-07-18 JP JP2012159249A patent/JP5865797B2/ja not_active Expired - Fee Related
- 2012-07-19 WO PCT/JP2012/068378 patent/WO2013012046A1/ja active Application Filing
- 2012-07-19 BR BR112014001308A patent/BR112014001308A2/pt not_active Application Discontinuation
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JPH06139805A (ja) * | 1992-10-27 | 1994-05-20 | Tokyo Electric Co Ltd | 車両用照明器具 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2803551A1 (en) * | 2013-04-09 | 2014-11-19 | Bombardier Transportation GmbH | Led lighting system for a railway vehicle |
US9593835B2 (en) | 2013-04-09 | 2017-03-14 | Bombardier Transportation Gmbh | LED lighting system for a railway vehicle |
US10568171B2 (en) | 2017-09-11 | 2020-02-18 | 2449049 Ontario Inc. | Universal AC and DC input modular interconnectable printed circuit board for power distribution management to light emitting diodes |
EP3575148A1 (fr) * | 2018-06-01 | 2019-12-04 | ALSTOM Transport Technologies | Profilé pour l'aménagement intérieur d'un véhicule ferroviaire |
FR3081751A1 (fr) * | 2018-06-01 | 2019-12-06 | Alstom Transport Technologies | Profile pour l'amenagement interieur d'un vehicule ferroviaire |
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